Not really if you want to have the flexibility to show files on the phone, two tablets, a laptop and on the customers equipment.

You mean you want all of those devices to not have an SD card slot either?

Sharing the same files between my devices is part of why SD cards are a nen-negotiable requirement for many of us. I can put the same micro SD in my phone, any of our PCs, any of our ereaders except the PRS-350, or the stereo in the car to listen to music, and can look at pictures on most of those, and read books on most as well. Yet in your world, an SD card does not accomplish that...curious.